My dear mother used to tell me "let your yes's be yes and your no's be no. But save no for the important stuff!" In other words if you make a decision stick to it, and use your veto power for things that really truley matter. She didn't tell me how hard it would be to stick to that sometimes. My 2 children learned very quickly that if I said "I'll think about it, or Perhaps, they had a pretty good chance. She would also say "children are the most forgiving people on the planet, what you do out of love, or fear for their life, they will forgive you for. What you do out of anger will stick with them" So my best advice is to take a moment and don't react out of anger, whatever your gut tells you, is probably the right thing to do... listen to that, and not the other mother sitting next to you on the park bench unless of course that other woman is your mother. If the other woman is your mother then I guess you have to decide if you turned out pretty good or not. I think my mom was very wise. And I see a whole lot of very good mothers out there today.